>We did not ban racial discrimination because we engaged with statistical arguments for racism and decided they were unfounded.

That is exactly what we did. Legally entrenched racial discriminatiom was widely supported pretty much exactly up until science refuted scientific racism.

The whole argument against racism is that race doesn't matter, it is just a social construct, "race" is meaningless because there is more variability with races than between them, etc. That has always been a key argument against racism.

>We undid legal racial discrimination because it’s morally repugnant.

It is morally repugnant because it is incorrect. It would not be morally repugnant to discriminate racially if it wasn't baseless, just as it isn't morally repugnant to discriminate in any situation where it is justifiable.

For example nobody has a problem with not hiring a black man to play a white female character in a film. Nobody has a problem with having publicly funded breast cancer screening programs that are only available for women, even though in very rare cases males can get breast cancer.

Racism is morally repugnant when you make decisions based on race. It is obviously not morally repugnant if you are making decisions based on something else, and that happens to correlate with race. There is quite obviously nothing wrong with basing insurance premiums on all available information about someone, including genetic information.

Would you say it is morally repugnant to charge higher premiums to white people for skin cancer health insurance cover? Come on! Use your brain, man.